Two ordinary high schoolers, Taichi and Rin, are ripped from their everyday lives when a mysterious magic circle transports them to a sprawling fantasy world. Monsters, beastmen, elves, and dwarves roam this strange new realm, and survival isn't guaranteed for unprepared newcomers. To get by, they decide to become adventurers. But when they submit to the standard aptitude test, something unexpected happens. Both Taichi and Rin test off the charts, discovering magical abilities far beyond those of an ordinary mage. With overpowered magic in their hands and everything to learn about this world, the pair set out to master their new strength, learn why they were brought here, and search for a way back home, while unforeseen trouble waits in the shadows.